vdiffr does not signal a test failure (only throws a warning) if a figure does not yet exist in the tests/figs dir, which was resulting in some tests being skipped on Travis but our tests still passing. I'm going to change this behavior in an upcoming PR so that if the expected test fig doesn't exist, we'll get an error instead of a warning. This should result in Travis failure.
vdiffr does not signal a test failure (only throws a warning) if a figure does not yet exist in the tests/figs dir, which was resulting in some tests being skipped on Travis but our tests still passing. I'm going to change this behavior in an upcoming PR so that if the expected test fig doesn't exist, we'll get an error instead of a warning. This should result in Travis failure.